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3 years ago

need help please. Problem: Construct a triangle with interior angle measures of 45° and 45°. The third angle of the triangle is

Mathematics

2 answers:

REY [17]3 years ago

4 0

The angles of a triangle add to 180 degrees so the remaining angle must be 90°.

This triangle is half a square. It's one of the two tired triangles of trig, the other being half an equilateral triangle, 30°/60°/90°.

Radda [10]3 years ago

3 0

Answer:

Step-by-step explanation:

1 triangle=180 45+45-90

90+90=180

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8 and 4 / 9 divided by 2 and 1 / 9 10 points Please show work

Vinil7 [7]

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3 years ago

About 0.5 of all the students in the fifth grade are girls. If the fifth grade has 80 students, how many of the students are gi

Nookie1986 [14]

Answer:

40 Girls.

Step-by-step explanation:

80 multipled by 0.5 = 40

7 0

2 years ago

Help please!!!!!!!!!!!!

Nady [450]

Answer:

Step-by-step explanation:

a. 1 & 2

b. 3 & 5

c. 2/15

d. 2/5 x 5/3

e. 10/15= 2/3

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2 years ago

How much $ do you make in an hour if you earn $42.25 in 6.5 hours?

mafiozo [28]

$6.50 per hour. 42.25/6.5=6.5

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3 years ago

A sign on the pumps at a gas station encourages customers to have their oil checked, and claims that one out of 10 cars needs to

Archy [21]

Answer:

0.2916, 0.1488, 0.0319

Step-by-step explanation:

Given that a sign on the pumps at a gas station encourages customers to have their oil checked, and claims that one out of 10 cars needs to have oil added.

Since each trial is independent there is a constant probability for any random car to need oil is 0.10

Let X be the number of cars that need oil

A) Here X is BIN(4,0.1)

$P(X=1) = 4C1(0.1)(0.9)^3 \\= 0.2916$

B) Here X is Bin (8, 0.1)

$P(x=2) = 8C2 (0.1)^2 (0.9)^6\\\\=0.1488$

C) Here X is Bin (20,5)

$P(x=5) = 20C5 (0.1)^5 (0.9)^{15} \\=0.0319$

3 0

2 years ago